Yes from the option /ipv6 firewall Rules can be created to deny or allow connections related to the IPv6 protocol.

MikroTik offers IPv6 firewall support through RouterOS, its network operating system. This support allows MikroTik users to configure specific firewall rules for IPv6 traffic, similar to how IPv4 traffic is handled, but using IPv6-specific tables and rules.

The IPv6 firewall in RouterOS enables several critical security and traffic management functions, including:

• Packet Filtering: Allows you to block or allow traffic based on IPv6 addresses, ports, packet types, and other criteria.
• Safety: It helps protect the network against unauthorized access and common attacks, such as port scanning, Denial of Service (DoS), and others.
• Traffic control: It can be used to limit bandwidth, prioritize certain types of traffic, and apply QoS (Quality of Service) policies.
• NAT for IPv6 (NAT66): Although the use of NAT is less common in IPv6 due to the abundance of available addresses, RouterOS offers support for NAT66 if it is needed for specific network design reasons.

To configure the firewall for IPv6 in MikroTik, the same tools and basic principles are used as for IPv4, but they are applied in the specific IPv6 tables and rules. This includes defining rules in the firewall section of RouterOS, under IPv6-specific options, such as IPv6 Firewall where you can configure rules for the chain input, forward, and output, as well as for IPv6-specific address lists, NAT, and Mangle.

It is important for network administrators to be familiar with the differences between IPv6 and IPv4 in terms of security and firewall configuration, as some IPv4 concepts and practices do not translate directly to IPv6 or may require a different approach due to the unique characteristics of IPv6. IPvXNUMX.